Valve



May 11, 1943. H. ,w. GOETZ VALVE Filed Oct. 12, 1940 Patented May 11,1943 VALVE Herbert W. Goctz, Alhambra, Calif., assignor to PatentRoyalties, Inc., Huntington Park, Calif., a corporation of CaliforniaApplication October 12, 1940, Serial No. 360,932

4 Claims.

My invention relates to a valve assembly of the type in which the valvemember is capable of circumferential shifting and rotating so that ateach closing of the valve a different contacting surface of the valvewill engage the seat. Such type :of valve is shown in the patent toGerhard Meyer, entitled Pump valve, No. 1,939,- 128, issued December 12,1933, the patent to John J. Ferlin and Herbert W. Goetz for Valve, No.1,940,999, issued December 26, 1933, and the patent to John J. Ferlinand Herbert W. Goetz for Valve, No. 1,942,417, issued January 9, 1934.

It is an object of my invention to provide a valve assembly of thegeneral character disclosed in the patents mentioned above in which theguiding and centralizing mean for the valve cooperates between the valveand the seat so that it is unnecessary to have any parts of the pump inwhich my invention is installed, specially designed or prepared for thereception of the valve of my invention.

It is a further object of my invention to pro- Vide a valve structure inwhich the valve is provided with a guide sleeve which is closed at thetop and opens downwardly through the bottom of the valve and in whichthere is positioned within the guide sleeve a centralizing ball which iscarried by a support which-extends upwardly into the guide sleeve. Inthe preferred form of my invention, the centralizing ball is supportedon a stem which is carried by a spider formed on the seat.

It is a further object of my invention to provide a valve assemblyhaving the features and advantages set forth above, which is of simpleand sturdy construction, which i economical to construct, and which maybe easily installed in a pump without danger of misplacement .ormisalignment of any of the parts.

-Other objects and advantages of my invention are contained in thedetails of construction of the preferred form of my invention and willbe pointed out during the course of the following detailed description.

Referring to the accompanying drawing in which the preferred form of myinvention is illustrated:

Fig. 1 is a sectional view through the valve of my invention, the valvebeing illustrated in position within a pump.

Fig. 2 is a fragmentary view partly in section taken on theline 2-2 ofFig. 1.

Referring to the drawing in detail, Fig. 1 shows a valve chest having awall II which supports a seat l2, the seat I2 being threa'dedly orotherwise secured in place. In an outer wall Id of the pump there is anentrance opening !5 through which the valve assembly may be inserted andremoved, this opening [5 being closed by a suitable cover I6.

Referring now more particularly to the valve assembly of my invention,the seat 42 is provided with an arcua-te seat surface 26 which ispreferably semi-spherical and i preferably generated around a point 2|which in turn is preferably located on the axis A-A of the seat opening22. Supported in the seat 12 is a spider consisting of arms 23 and acentral hub 2t. Carried by the hub 26 is a stem or support 25 having acentralizing ball or spherical guide element 26 supported at its upperend. The stem 25 is preferably removably supported by the hub 24 bythreaded engagement 2?, as illustrated. The centralizing ball 26 has anarcuate surface 29 which is preferably semi-spherical in shape and ispreferably generated around the point 2! The ball 26 is provided withdrainage slots 38.

The valve 32 of my invention has a valve part 33 which provides anarcuate valve surface E l which is preferably semi-spherical and ispreferably formed on a radius of the same length as the radius on whichthe valve surface it: is formed, so that when the valve 32 is in seatedposition with the valve surface 3 2, contacting the seat surface 20, asshown in Fig. l, the point around which the valve surface it is formedwill coincide with the point 2|. When the valve is in a seated positionas shown, the radiuses B, C, and D all project from the point 2i.

The valve 32 provides a guide means in the form of a sleeve 36 closed atits top by an end wall 31. The inside of the sleeve 36 provides a cavitywhich is closed at its top but whichcpens downwardly through the bottomof the valve part 34. The sleeve 35 provides an inner guide sur-- face39 which is preferably cylindrical and is preferably of a diameter twicethe radiu C so that there will be a relatively accurate aligningcooperation between the 'ball 25 and sleeve 35. It is possible to makethe cross-sectional shape of the sleeve 36 other than cylindrical andstill obtain the action between the sleeve and ball which. will bepointed out hereinafter. It appears desirable under such alternativeconstruction to have opposing walls parallel to each other and spacedequally on opposite sides of the center line of the valve 32.

In operation the valve engages the seat when in closed position with thearcuate surfaces 20 and 34 in contact with each other. When the valve isopened, the valve moves upwardly and the upper end of the sleeve 36 orthe end wall 31 may engage a wall 40 of the cover l6, thus limiting theupward movement of the valve. It will be seen that the cooperationbetween the sleeve and ball allows the valve to move upwardly ordownwardly along the axis A-A, allows the valve to rotate, and,furthermore, allows the valve to oscillate or shift circumferentially.The arrangement provided permits gyratory motion of the valve but theparts are so constructed and arranged that regardless of the shiftedposition of the valve when the valve moves downwardly and is in aposition to engage the seat l2, the center of the arcuate surface 34will be on the axis A-A and the point around which the surface 34 isgenerated will coincide with the point 2| around which the surface 20 isgenerated.

In installing the valve assembly of my invention the valve and seat andguide means constitute a unitary structure which is entirely independentof all other parts of the pump structure in which the valve may beemployed. Obviously, if desired, only the valve need be replaced or ifthe ball 26 has become worn it can be replaced by unscrewing it from thehub 24.

In the foregoing description I have described the preferred form of myinvention. It should be understood, however, that various alterationsand modifications may be made without departing from the spirit andscope of my invention, as set' forth in the statement of invention andappended claims.

I claim as my invention:

1. For use in a valve opening in a pump of the character described, avalve structure comprising the combination of a combined ring shapedvalve seat member and valve guiding member, a valve member having aspherical face and a tubular guiding element closed at its upper end,the valve seat surface of said valve seat being formed as an annularportion of a sphere formed in the ring shaped valve seat member, aspider supported by said ring shaped member to lie below the zone ofsaid valve seat ring, said guiding member extending vertically from saidspider and carrying a spherical guiding element at its upper end, saidspherical valve seat surface, valve face and guiding element beingformed about a common center when the valve is seated.

2. For use in a valve opening in a pump of the character described, avalve structure comprising the combination of a combined ring shapedvalve seat member and valve guiding member, a valve member having aspherical face and a tubular guiding element closed at its upper end,the valve seat surface of said valve seat being formed as an annularportion of a sphere formed in the ring shaped valve seat member, aspider supported by said ring shaped member to lie below the zone ofsaid valve seat ring, said guiding member extending vertically from saidspider and carrying a spherical guiding element at its upper end ofsegmental form, spaces being left between said segments to providedrainage channels of relatively large size, said spherical valve seatsurface, valve face and guiding element being formed about a commoncenter when the:

valve is seated.

3. In a valve construction, the combination of: a valve membercomprising a valve having a seating surface of spherical form and atubular upwardly projecting guide element closed at its upper end,carried by said valve; and a valve seat and guiding unit comprising aring shaped part having a spherically formed valve seat and carrying adownwardly projecting spider, an upwardly projecting stem mounted onsaid downwardly projecting spider and projecting into said tubularelement carried by the valve member, and carrying a spherical guidingsurface at its upper end, said spherical guiding surface and inner wallof said tubular element acting to guide said valve, and drainingchannels of large area formed in said spherical guiding surface, saidspherical surfaces being formed with a common center when said valve isseated, said valve member, valve seat and guiding stem forming aself-contained unit adapted to replace a conventional valveconstruction.

4. For use in a valve opening in a pump of the character described, avalve structure comprising the combination of: an annular valve seatmember having a valve seat face formed as an annular portion of a spherecentered on the axis of the valve seat member; an open work supportingstructure rigidly carried by said valve seat member and having a centralsupport displaced along said axis with respect to said valve seat facein a direction opposite from said center of said sphere; a frame memberrigidly secured to and extending from said support toward said center; aspherical guide element carried by said frame member having a sphericalguide surface centered on said center; a valve closure ring for saidvalve seat having a valve face in the form of a spherical annuluscentered on said center when seated on said valve seat face and looselyencircling said frame member; and a tubular guide element of an internaldiameter to cooperate with said spherical guide surface and secured toand extending from said valve closure in a direction to encircle saidspherical guide member, said tubular guide element providing a fluidtight chamber in fluid tight relation with said valve closure, saidchamber having an annular opening around said frame member and being ofa length to clear said spherical guide element when said valve closureis in seated position, whereby said valve closure may have a rockingmovement about said center in all directions at all spacings from saidvalve seat thereby bringing said valve face into engagement with saidvalve seat face at varying angles of the axis of said tubular guideelement to the axis of said valve seat, said rocking movement beinglimited by engagement of said frame member with the tubular guidingelement to ensure engagement of said valve seat face with a sphericalannular portion of said valve face of varying eccentricity to the axisof said valve closure, and said spherical and tubular guide elementsbeing formed to establish a communicating passage between the two endportions of said chamber separated by said spherical guide element.

HERBERT W. GOETZ.

